10/02/1900 Edison, Thomas Alva to Miller, John Vincent and Chapman, Cloyd Mason
(Ortiz Mine; Burn, Samuel G; Hoyt, Alfred W [supplied or conjectured]) Ore exploration and mining; Ore mills; Ore milling (non-iron ore)
[LB065]  General Letterbook Series: Letterbook, LB-065 (1900-1901)
[LB065147; TAEM 196:596]
Courtesy of Thomas Edison National Historical Park.
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